@article{69b455e017e511df8ed1000ea68e967b,
title = "Leishmanicidal, antiplasmodial, and cytotoxic activity of novel diterpenoid 1,2-quinones from Perovskia abrotanoides: new source of tanshinones",
abstract = "Cryptotanshinone (1), a quinoid diterpene with a nor-abietane skeleton, and three new natural products, 1beta-hydroxycryptotanshinone (2), 1-oxocryptotanshinone (3), and 1-oxomiltirone (4), were isolated from roots of the Iranian medicinal plant Perovskia abrotanoides. Their structures were established using homo- and heteronuclear two-dimensional NMR experiments, supported by HRMS. The total amount of tanshinones isolated from dry roots of Perovskia abrotanoides was about 1.5%. The compounds exhibited leishmanicidal activity in vitro (IC(50) values in the range 18-47 microM). These findings provide a rationale for traditional use of the roots in Iran as a constituent of poultices for treatment of cutaneous leishmaniasis. The isolated tanshinones also inhibited growth of cultured malaria parasites (3D7 strain of Plasmodium falciparum), drug-sensitive KB-3-1 human carcinoma cell line, multidrug-resistant KB-V1 cell line, and human lymphocytes activated with phytohaemagglutinin A (IC(50) values in the range 5-45 microM). The toxicity of tanshinones toward the drug-sensitive KB-3-1 and the multidrug-resistant KB-V1 cells was the same, indicating that the compounds are not substrates for the P-glycoprotein drug efflux pump.",
author = "M Sairafianpour and J Christensen and D Staerk and Budnik, {B A} and A Kharazmi and K Bagherzadeh and Jaroszewski, {J W}",
note = "Keywords: Animals; Anti-Infective Agents; Antineoplastic Agents, Phytogenic; Antiprotozoal Agents; Chromatography, Thin Layer; Diterpenes; Drug Resistance; Humans; Iran; Lamiaceae; Leishmania major; Lymphocytes; Nuclear Magnetic Resonance, Biomolecular; Phenanthrenes; Phytohemagglutinins; Plant Lectins; Plant Roots; Plants, Medicinal; Plasmodium falciparum; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; Tumor Cells, Cultured",
year = "2001",
doi = "10.1021/np010032f",
language = "English",
volume = "64",
pages = "1398--1403",
journal = "Journal of Natural Products",
issn = "0163-3864",
publisher = "American Chemical Society",
number = "11",
}